EAST Anti-Phishing Tool is a free anti-phishing tool by Eye Security. FirmGuardian Email Protection is a commercial anti-phishing tool by FirmGuardian. Compare features, ratings, integrations, and community reviews side by side to find the best anti-phishing fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Microsoft 365 administrators managing credential phishing at organizations under 5,000 users will find real value in EAST Anti-Phishing Tool because the CSS-based deployment model actually stops phishing pages from rendering correctly on your own login portal, blocking the attack before users even type credentials. The free model with no per-seat licensing means you get Entra-native protection without budget negotiation; deployment takes under an hour through the portal interface. Skip this if your environment runs hybrid identity systems outside pure Entra or if you need detection and response capabilities beyond the login page itself.
Security teams at startups and SMBs will see the fastest ROI from FirmGuardian Email Protection because the human analyst layer catches BEC and impersonation attacks that pure AI misses, without the staffing overhead of a full SOC. The tool covers both detection and user behavior monitoring across Microsoft 365 and Google Workspace, hitting DE.CM and PR.AT in NIST CSF 2.0. Skip this if your organization needs deep integration with non-cloud email systems or requires automated response orchestration beyond quarantine.
Free anti-phishing tool for M365 that deploys via a custom CSS file in Entra.
Managed anti-phishing service combining AI detection with human analyst review.
Access NIST CSF 2.0 data from thousands of security products via MCP to assess your stack coverage.
Access via MCPNo reviews yet
No reviews yet
Explore more tools in this category or create a security stack with your selections.
Common questions about comparing EAST Anti-Phishing Tool vs FirmGuardian Email Protection for your anti-phishing needs.
EAST Anti-Phishing Tool: Free anti-phishing tool for M365 that deploys via a custom CSS file in Entra. built by Eye Security. headquartered in Netherlands. Core capabilities include Credential phishing protection for Microsoft 365 environments, Custom CSS file deployment via Microsoft Entra Portal, Email-based delivery of installation instructions and CSS file..
FirmGuardian Email Protection: Managed anti-phishing service combining AI detection with human analyst review. built by FirmGuardian. headquartered in United States. Core capabilities include AI-powered phishing detection and automated quarantine, Human analyst review for low-confidence email classification, Business Email Compromise (BEC) and impersonation protection..
Both serve the Anti-Phishing market but differ in approach, feature depth, and target audience.
Get strategic cybersecurity insights in your inbox
